JPH07103193A - Blower and fan - Google Patents
Blower and fanInfo
- Publication number
- JPH07103193A JPH07103193A JP5244416A JP24441693A JPH07103193A JP H07103193 A JPH07103193 A JP H07103193A JP 5244416 A JP5244416 A JP 5244416A JP 24441693 A JP24441693 A JP 24441693A JP H07103193 A JPH07103193 A JP H07103193A
- Authority
- JP
- Japan
- Prior art keywords
- washer
- sleeve
- outer peripheral
- elastic member
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、たとえば空気調和機に
備えられるターボファンのごとき送風ファンであり、特
に、モータの回転軸に嵌着されるボス部およびワッシャ
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower fan such as a turbo fan provided in an air conditioner, and more particularly to a boss portion and a washer fitted to a rotating shaft of a motor.
【０００２】[0002]
【従来の技術】たとえば、天井埋込み形の室内ユニット
を備えた空気調和機がある。上記室内ユニットには、被
熱交換室の空気を吸込んで熱交換器と熱交換させ、再び
室内へ送風する送風機が収容される。2. Description of the Related Art For example, there is an air conditioner equipped with a ceiling-embedded indoor unit. The indoor unit accommodates a blower that draws in air from the heat exchanged chamber, exchanges heat with the heat exchanger, and blows air again into the room.
【０００３】この送風機の送風ファンには、天井埋込み
形としての使用環境上と、低騒音化の要望が大であると
ころから、送風特性が最適のターボファンが選択され
る。そして先の要望から、ターボファンを構成するファ
ンブレードの肉厚が比較的厚くて、航空機用のものとほ
ぼ同様の断面翼となり、そのため送風騒音の低下を図ら
れる。For the blower fan of this blower, a turbofan having an optimum blower characteristic is selected in view of the use environment as a ceiling-embedded type and the fact that there is a great demand for noise reduction. According to the above request, the fan blades forming the turbofan have a relatively large wall thickness, and the blades have a cross section substantially similar to that of an aircraft, so that the blast noise can be reduced.
【０００４】その反面、モータの電磁振動による磁気音
が目立つようになった。すなわち、モータ回転軸からフ
ァンに伝達する磁気振動が大となるので、これを低減し
なければならない。On the other hand, magnetic noise due to electromagnetic vibration of the motor has become noticeable. That is, the magnetic vibration transmitted from the motor rotating shaft to the fan becomes large, and this must be reduced.
【０００５】その低減手段の一例として、実開昭５８−
７９０９５号公報に示されるように、円筒状ボスを用い
た防振構造が開発された。これは、金属製の円筒体であ
る内部スリーブおよび外部スリーブと、これら内外部ス
リーブの間に、加硫接着等の手段で介設される弾性部材
である円筒状のゴム材からなる。As an example of the means for reducing the above-mentioned problem, the utility model number 58-
As shown in Japanese Patent Publication No. 79095, a vibration damping structure using a cylindrical boss has been developed. This is composed of an inner sleeve and an outer sleeve that are metal cylindrical bodies, and a cylindrical rubber material that is an elastic member interposed between the inner and outer sleeves by means such as vulcanization adhesion.
【０００６】上記内部スリーブがモータの回転軸に嵌挿
され、固定される。外部スリーブには、ファンブレード
が一体的に設けられる。上記ゴム材は、回転軸の磁気振
動を吸収し、ファンブレード側への伝達を阻止する。The inner sleeve is fitted and fixed to the rotary shaft of the motor. A fan blade is integrally provided on the outer sleeve. The rubber material absorbs the magnetic vibration of the rotating shaft and blocks the transmission to the fan blade side.
【０００７】[0007]
【発明が解決しようとする課題】しかるに、実際に用い
られるターボファンは、普通、約２Kgあり、この重量が
内外部スリーブ間に介設されるゴム材に掛かる。すなわ
ちゴム材は、トルク・重量・振動応力の全てを受けるこ
とになる。However, the turbofan actually used is usually about 2 kg, and this weight is applied to the rubber material interposed between the inner and outer sleeves. That is, the rubber material receives all of torque, weight and vibration stress.
【０００８】しかも、暖房運転時には、ファンは高温の
雰囲気に長時間さらされるので、ゴム材に対する熱的悪
影響が大きい。また、加硫接着時に、ゴム材と、内外ス
リーブとに僅かの接着不良があっても、長期の使用にと
もなって互いの剥離が進行する。ついには、ファンがモ
ータ回転軸から脱落する虞れがある。Moreover, during the heating operation, the fan is exposed to a high temperature atmosphere for a long time, so that the rubber material is greatly adversely affected by heat. In addition, even if there is a slight adhesion failure between the rubber material and the inner and outer sleeves during vulcanization adhesion, they will be separated from each other with long-term use. Finally, the fan may fall off the motor rotation shaft.
【０００９】本発明は、このような事情に鑑みてなされ
たものであり、その目的とするところは、モータ回転軸
からの磁気振動を減衰するのに効果のある弾性部材を使
用することを前提として、種々の悪条件にも係わらず、
モータ回転軸に対して、高い信頼性および安全性を保持
した取付け固定をなす送風ファンを提供することにあ
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to use an elastic member effective for attenuating magnetic vibrations from a motor rotating shaft. As a result, despite various adverse conditions,
An object of the present invention is to provide a blower fan that is mounted and fixed on a motor rotating shaft with high reliability and safety.
【００１０】[0010]
【課題を解決するための手段】このような目的を満足す
るため本発明の送風ファンは、ファンブレードが設けら
れ、モータの回転軸に挿嵌されるボス部と、このボス部
と、ボス部を回転軸に締結固定する取付けナットとの間
に介在するワッシャとを具備した送風ファンにおいて、
上記ボス部は、モータの回転軸に挿嵌され、その挿入側
端部に鍔部を有する、金属製円筒状の内周スリーブと、
この内周スリーブの鍔部と外周面とに亘って接着され、
上記鍔部とは反対側の端部において内周スリーブ端部よ
り所定寸法短く形成される弾性部材と、その外周面に上
記ファンブレードが設けられ、上記弾性部材の外周面に
接着されるとともに、両端部が弾性部材の両端部と同一
位置に設定される金属製円筒状の外周スリーブとからな
り、上記ワッシャは、上記モータ回転軸に挿嵌される取
付け用孔が設けられ、上記取付けナットで締結された状
態で、内周スリーブの他端部端面に当接される金属片か
らなるワッシャ片部と、このワッシャ片部の一側面およ
び周面に亘って接着され、上記取付けナットで締結され
た状態で、弾性部材端部とワッシャ片部との間に介在さ
れ、かつ外周スリーブ端部に当接する弾性片部とからな
ることを特徴とする。In order to satisfy such an object, a blower fan of the present invention is provided with a fan blade, a boss portion to be fitted into a rotary shaft of a motor, the boss portion, and the boss portion. In a blower fan equipped with a washer interposed between a mounting nut for fastening and fixing the
The boss portion is inserted into the rotary shaft of the motor, and has a flange portion at the insertion side end portion thereof, and is a metal cylindrical inner peripheral sleeve,
The inner peripheral sleeve is bonded over the flange portion and the outer peripheral surface,
An elastic member formed on the end opposite to the flange portion by a predetermined dimension shorter than the end of the inner peripheral sleeve, and the fan blade is provided on the outer peripheral surface thereof, and is bonded to the outer peripheral surface of the elastic member, Both ends are made of a metal cylindrical outer peripheral sleeve set at the same position as both ends of the elastic member, and the washer is provided with a mounting hole to be fitted into the motor rotating shaft, and the washer is provided with the mounting nut. In the fastened state, a washer piece portion made of a metal piece that is in contact with the end surface of the other end of the inner circumferential sleeve is adhered to one side surface and the circumferential surface of the washer piece portion, and is fastened with the mounting nut. In this state, the elastic piece portion is interposed between the elastic member end portion and the washer piece portion, and is in contact with the outer peripheral sleeve end portion.
【００１１】[0011]
【作用】このような構成によれば、取付けナットの締め
付け力によって、モータ回転軸からの磁気振動の伝達を
吸収し、阻止する。たとえ弾性部材が内外周スリーブと
剥離するようなことがあっても、ワッシャと内周スリー
ブ鍔部とで挟持するところから、ボス部に対する確実な
固定保持をなす。According to this structure, the tightening force of the mounting nut absorbs and blocks the transmission of magnetic vibration from the motor rotating shaft. Even if the elastic member is peeled off from the inner and outer sleeves, it is securely fixed and held to the boss portion because it is sandwiched between the washer and the inner sleeve collar.
【００１２】[0012]
【実施例】以下、本発明の一実施例を図面を参照して説
明するに、送風ファンとして、ターボファンを適用す
る。このターボファンＦは、軸線に沿って後述するボス
Ｂが設けられ、図１のみに示すように、モータＭの回転
軸ａに嵌着される。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, in which a turbo fan is applied as a blower fan. This turbofan F is provided with a boss B, which will be described later, along the axis, and is fitted to the rotating shaft a of the motor M as shown only in FIG.
【００１３】図３および図４に示すように、上記ボスＢ
の外周面には、主板１が一体に設けられる。この主板１
の基端部は、ボスＢ周面から軸線ｌと直交する方向に延
出される。すなわち、図において垂直方向に延出される
軸線ｌに対して、主板１の基端部は水平方向に延出され
る。As shown in FIGS. 3 and 4, the boss B is
The main plate 1 is integrally provided on the outer peripheral surface of the. This main plate 1
The base end portion of is extended from the peripheral surface of the boss B in a direction orthogonal to the axis l. That is, the base end portion of the main plate 1 extends in the horizontal direction with respect to the axis line 1 extending in the vertical direction in the drawing.
【００１４】そして主板１は、基端部周囲からホーン状
に拡径され、さらに先端部において軸線ｌと直交する方
向に延出される。主板１先端部の下面には、複数のブレ
ード２…が所定間隔を存して一体に連設される。これら
ブレード２は、断面翼状をなしていて、所定の角度に傾
けて形成される。The main plate 1 is expanded in a horn shape from the periphery of the base end portion, and is further extended at the tip end portion in a direction orthogonal to the axis l. A plurality of blades 2 are integrally and continuously provided on the lower surface of the leading end of the main plate 1 at a predetermined interval. These blades 2 have a wing-shaped cross section and are formed by inclining at a predetermined angle.
【００１５】上記ブレード２の下端面は、吸込みリング
４に一体に連結される。この吸込みリング４は、主板１
の先端部直径と同一の外径を有し、内径部に対して主板
と同様のホーン状をなし、上記ブレード２の先端一部が
一体に連結される。ただし、内径部は、軸線ｌと平行に
形成される。The lower end surface of the blade 2 is integrally connected to the suction ring 4. This suction ring 4 is the main plate 1
Has the same outer diameter as the diameter of the tip portion, and has a horn shape similar to the main plate with respect to the inner diameter portion, and a portion of the tip of the blade 2 is integrally connected. However, the inner diameter portion is formed parallel to the axis l.
【００１６】つぎに、上記ボスＢについて説明する。図
１に拡大して示すように、モータＭの回転軸ａは基端部
ａ1 、中段部ａ2 および先端部ａ3 の、３段形状からな
り、順次その直径が小さくなっていることを前提とす
る。なお先端部ａ3 は、ねじ部となっている。Next, the boss B will be described. As shown in an enlarged scale in FIG. 1, the rotating shaft a of the motor M has a three-step shape of a base end portion a 1 , a middle step portion a 2 and a tip end portion a 3 , and its diameter is gradually reduced. Assumption. The tip portion a 3 is a threaded portion.
【００１７】上記ボスＢは、送風ファンＦの主板１に一
体的に設けられるボス部１０と、このボス部１０ととも
にモータ回転軸ａに挿嵌され、かつ取付けナット１１で
締結固定されるワッシャ１３とから構成される。The boss B is a boss portion 10 provided integrally with the main plate 1 of the blower fan F, and a washer 13 that is fitted together with the boss portion 10 into the motor rotating shaft a and is fastened and fixed with a mounting nut 11. Composed of and.
【００１８】また、上記ボス部１０は、回転軸ａに挿嵌
される円筒状の内周スリーブ１５と、上記主板１が一体
的に設けられる円筒状の外周スリーブ１６と、これら内
周スリーブ１５と外周スリーブ１６との間に介設される
弾性部材であるゴム部材１７からなる。Further, the boss portion 10 has a cylindrical inner peripheral sleeve 15 inserted into the rotary shaft a, a cylindrical outer peripheral sleeve 16 integrally provided with the main plate 1, and these inner peripheral sleeves 15. And a rubber member 17 which is an elastic member interposed between the outer peripheral sleeve 16 and the outer peripheral sleeve 16.
【００１９】なお説明すれば、上記内周スリーブ１５
は、回転軸ａの中段部ａ2 に挿嵌されていて、その一端
には、中段部ａ2 と基端部ａ1 との段部に当接する鍔部
１５ａが一体に設けられる。To explain further, the inner peripheral sleeve 15
Is fitted in the middle step portion a 2 of the rotary shaft a, and at one end thereof, a flange portion 15 a that comes into contact with the step portion of the middle step portion a 2 and the base end portion a 1 is integrally provided.
【００２０】上記ゴム部材１７は、内周スリーブ１５の
外周面と鍔部１５ａ面とに亘って、加硫接着などの手段
で固着される。その一端部は、上記内周スリーブ１５の
端部よりも寸法ｈ分だけ、軸方向長さが短い。The rubber member 17 is fixed to the outer peripheral surface of the inner peripheral sleeve 15 and the surface of the flange 15a by means such as vulcanization adhesion. One end thereof has an axial length shorter than the end of the inner peripheral sleeve 15 by a dimension h.
【００２１】上記外周スリーブ１６は、その一端部がゴ
ム部材１７の端部に埋設され、かつ他端部はゴム部材と
同一の端面位置にあって、寸法ｈ分だけ内周スリーブ１
５端部よりも短い。One end of the outer peripheral sleeve 16 is embedded in the end of the rubber member 17, and the other end is at the same end face position as the rubber member.
Shorter than 5 ends.
【００２２】なお上述したように、外周スリーブ１６は
金属製であって、この外周面が合成樹脂材からなるファ
ン主板１の成形にともなって一体化されるのであり、こ
の加工が確実となるよう、外周面はいわゆるローレット
加工がなされるとともに周面に沿う凹部を有する。As described above, the outer peripheral sleeve 16 is made of metal, and the outer peripheral surface of the outer peripheral sleeve 16 is integrated with the molding of the fan main plate 1 made of a synthetic resin material. The outer peripheral surface is so-called knurled and has a recess along the peripheral surface.
【００２３】このような内周スリーブ１５と、ゴム部材
１７および外周スリーブ１６端部に上記ワッシャ１３が
当接し、かつ先端ねじ部ａ3 に螺合される取付けナット
１１によって締結される。The above-mentioned washer 13 abuts on the inner sleeve 15 and the ends of the rubber member 17 and the outer sleeve 16 and is fastened by the mounting nut 11 screwed to the tip screw portion a 3 .
【００２４】上記ワッシャ１３は、図２（Ａ），（Ｂ）
に示すように、矩形状の金属片であるワッシャ片部１８
と、このワッシャ片部に加硫接着等の手段で固着される
外形が矩形状の弾性片部１９とから構成される。The washer 13 is shown in FIGS. 2 (A) and 2 (B).
As shown in, the washer piece portion 18 which is a rectangular metal piece
And an elastic piece portion 19 having a rectangular outer shape fixed to the washer piece portion by means such as vulcanization adhesion.
【００２５】上記ワッシャ片部１８の外径寸法はｄ1 ×
ｄ1 であり、中心部に回転軸先端部ａ3 に嵌合する取付
け用孔１８ａが設けられる。上記弾性片部１９は、この
ワッシャ片部１８の一側面および周面に亘り、断面Ｌ字
状に形成される。The outside diameter of the washer piece 18 is d 1 ×
d 1 and a mounting hole 18 a that fits into the tip end a 3 of the rotating shaft is provided in the center. The elastic piece portion 19 is formed in an L-shaped cross section over one side surface and the peripheral surface of the washer piece portion 18.
【００２６】なお説明すれば、上記弾性片部１９は円形
状の内周部１９ａを有し、ワッシャ片部１８の一側面に
重なる。この内周部１９ａの肉厚寸法ｈ1 は、先に説明
した外周スリーブ１６とゴム部材１７端面と内周スリー
ブ１５端面との差寸法ｈと同一である。To explain further, the elastic piece portion 19 has a circular inner peripheral portion 19a and overlaps one side surface of the washer piece portion 18. The wall thickness dimension h 1 of the inner peripheral portion 19a is the same as the difference dimension h between the end surface of the outer peripheral sleeve 16, the rubber member 17, and the end surface of the inner peripheral sleeve 15 described above.
【００２７】内周部１９ａの直径φｄ2 は、上記ワッシ
ャ片部１８の外径寸法ｄ1 ×ｄ1 よりも小さく形成さ
れ、かつ上記内周スリーブ１５の外径寸法よりもわずか
に大である。The diameter φd 2 of the inner peripheral portion 19a is smaller than the outer diameter dimension d 1 × d 1 of the washer piece portion 18 and is slightly larger than the outer diameter dimension of the inner peripheral sleeve 15. .
【００２８】また上記弾性片部１９は、矩形状の外周部
１９ｂを有し、その外径寸法ｄ3 ×ｄ3 はワッシャ片部
１８の外径寸法ｄ1 ×ｄ1 よりも大きく形成される。し
たがってこの外周部１９ｂの肉厚は、先に説明した内周
部１９ａの肉厚と、ワッシャ片部１８の肉厚とを合計し
た寸法になる。Further, the elastic piece portion 19 has a rectangular outer peripheral portion 19b, and its outer diameter dimension d 3 × d 3 is formed larger than the outer diameter dimension d 1 × d 1 of the washer piece portion 18. . Therefore, the wall thickness of the outer peripheral portion 19b is the sum of the wall thickness of the inner peripheral portion 19a described above and the wall thickness of the washer piece portion 18.
【００２９】このようにして構成されるボスＢであり、
ターボファンＦをモータＭの回転軸ａに取付けた状態
が、図１に示すようになる。上記ボス部１０のモータ回
転軸ａへの挿嵌にあたっては、内周スリーブ１５の鍔部
１５ａを先にして、回転軸先端部ａ3 を介して中段部ａ
2 へ挿入する。そして鍔部１５ａを、中段部ａ2 と基端
部ａ1 との境の段部に押し当てる。The boss B constructed in this way is
The state in which the turbofan F is attached to the rotating shaft a of the motor M is as shown in FIG. In the fitted to the motor rotation axis a of the boss portion 10, and the flange portion 15a of the inner peripheral sleeve 15 above, middle portion a via the rotary shaft tip a 3
Insert into 2 . And a flange portion 15a, pressed against the step portion of the boundary between the middle portion a 2 and a proximal end a 1.
【００３０】この状態で内周スリーブ１５の、鍔部１５
ａとは反対側の端部は、中段部ａ2からある程度先端部
ａ3 側に突出する。ついで、ワッシャ１３を回転軸先端
部ａ3 に挿嵌する。このとき、弾性片部１９の内周部１
９ａを先にしなければならない。In this state, the collar 15 of the inner sleeve 15 is
The end on the side opposite to a projects to the tip a 3 side to some extent from the middle step a 2 . Then, the washer 13 is fitted into the tip end a 3 of the rotary shaft. At this time, the inner peripheral portion 1 of the elastic piece portion 19
9a must come first.
【００３１】ワッシャ１３に設けられる取付け用孔１８
ａを先端部ａ3 に挿嵌すると、先に説明した寸法設定か
ら、弾性片部１９は内周スリーブ１５の端部に嵌合する
とともに、内周スリーブ１５端部が弾性片部１９の内周
部１９ａ内側から露出するワッシャ片部１８の面に当接
する。Mounting hole 18 provided in washer 13
When a is inserted into the distal end portion a 3 , the elastic piece portion 19 is fitted to the end portion of the inner peripheral sleeve 15 and the end portion of the inner peripheral sleeve 15 is located inside the elastic piece portion 19 due to the dimension setting described above. It abuts the surface of the washer piece portion 18 exposed from the inside of the peripheral portion 19a.
【００３２】そしてまた、外周スリーブ１６の端部は弾
性片部１９の側面に当接する。この状態で回転軸先端部
ａ3 に取付けナット１１を螺合して、締め付ける。この
ナット１１は、ワッシャ１３を介してボス部１０を回転
軸ａに締結する。Further, the end portion of the outer peripheral sleeve 16 contacts the side surface of the elastic piece portion 19. In this state, the mounting nut 11 is screwed onto the tip a 3 of the rotary shaft and tightened. The nut 11 fastens the boss portion 10 to the rotating shaft a via the washer 13.
【００３３】このようにしてターボファンＦをモータ回
転軸ａに取付けたので、送風作用にともなってスラスト
方向に負荷がかかっても、回転軸ａの基端部ａ1 と中段
部ａ2 との間の段部と、内周スリーブ鍔部１５ａとの当
接面２０および、内周スリーブ１５端部と、ワッシャ１
３のワッシャ片部１８との当接面２１で受けて、この方
向に沿うターボファンＦの固定をなす。Since the turbofan F is attached to the motor rotating shaft a in this manner, even if a load is applied in the thrust direction due to the air blowing action, the base end part a 1 and the middle part a 2 of the rotating shaft a are separated. An abutting surface 20 between the step portion and the inner peripheral sleeve flange portion 15a, the inner peripheral sleeve 15 end portion, and the washer 1
The turbofan F is received along the contact surface 21 of the washer piece 18 of FIG.
【００３４】また、取付けナット１１の締結により、内
外周スリーブ１５，１６間に介在されるゴム材１７と、
ワッシャ１３を構成する弾性片部１９とが分担して回転
トルクを伝達する。Further, when the mounting nut 11 is tightened, the rubber material 17 interposed between the inner and outer sleeves 15 and 16,
The elastic piece portion 19 forming the washer 13 shares and transmits the rotational torque.
【００３５】その結果、モータ回転軸ａに電磁振動の発
生があっても、その全てを吸収してターボファンＦの騒
音低減をなす。上記ワッシャ１３を外周スリーブ１６の
内径よりも大きくしたので、内周スリーブ１５の外周面
とゴム材１７との接着面および外周スリーブ１６の内周
面とゴム材１７との接着面とに、たとえ剥離が生じて
も、特にゴム材１７を内周スリーブ１５の鍔部１５ａと
ワッシャ１３との間に挟持したので、ターボファンＦが
回転軸ａから脱落するごときの事故を未然に阻止する。As a result, even if electromagnetic vibration occurs on the motor rotating shaft a, all of it is absorbed to reduce the noise of the turbofan F. Since the washer 13 is made larger than the inner diameter of the outer peripheral sleeve 16, even if the outer peripheral surface of the inner peripheral sleeve 15 is adhered to the rubber material 17 and the inner peripheral surface of the outer peripheral sleeve 16 is adhered to the rubber material 17, Even if peeling occurs, in particular, the rubber material 17 is sandwiched between the flange portion 15a of the inner peripheral sleeve 15 and the washer 13, so an accident such as the turbofan F falling off the rotating shaft a is prevented.
【００３６】なお、上記実施例は、送風ファンＦとして
ターボファンを適用して説明したが、これに限定される
ものではなく、他の種類のファンであっても、同様の構
成を適用でき、同等の作用効果を得られる。In the above embodiment, a turbo fan is applied as the blower fan F, but the present invention is not limited to this, and the same configuration can be applied to other types of fans. The same effect can be obtained.
【００３７】[0037]
【発明の効果】以上述べたように本発明は、ファンブレ
ードが設けられ、モータの回転軸に挿嵌されるボス部
と、このボス部と、ボス部を回転軸に締結固定する取付
けナットとの間に介在するワッシャとを具備し、上記ボ
ス部は、モータの回転軸に挿嵌され、その挿入側端部に
鍔部を有する、金属製円筒状の内周スリーブと、この内
周スリーブの鍔部と外周面とに亘って接着され、上記鍔
部とは反対側の端部において内周スリーブ端部より所定
寸法短く形成される弾性部材と、その外周面に上記ファ
ンブレードが設けられ、上記弾性部材の外周面に接着さ
れるとともに、両端部が弾性部材の両端部と同一位置に
設定される金属製円筒状の外周スリーブとからなり、上
記ワッシャは、上記モータ回転軸に挿嵌される取付け用
孔が設けられ、上記取付けナットで締結された状態で、
内周スリーブの他端部端面に当接される金属片からなる
ワッシャ片部と、このワッシャ片部の一側面および周面
に亘って接着され、上記取付けナットで締結された状態
で、弾性部材端部とワッシャ片部との間に介在され、か
つ外周スリーブ端部に当接する弾性片部とからなる構成
であるので、モータ回転軸からの磁気振動を減衰するの
に効果のある弾性部材を使用することを前提として、種
々の悪条件にも係わらず、モータ回転軸に対して、高い
信頼性および安全性を保持した取付け固定をなす効果を
奏する。As described above, according to the present invention, the fan blade is provided, and the boss portion is inserted into the rotary shaft of the motor, the boss portion, and the mounting nut for fastening and fixing the boss portion to the rotary shaft. And a washer interposed between the boss portion and the boss portion, which is inserted into the rotation shaft of the motor and has a flange portion at the end portion on the insertion side thereof. Of the elastic member, which is bonded over the flange portion and the outer peripheral surface and is formed to have a predetermined dimension shorter than the inner peripheral sleeve end portion at the end portion on the side opposite to the flange portion, and the fan blade is provided on the outer peripheral surface thereof. A metal cylindrical outer sleeve that is adhered to the outer peripheral surface of the elastic member and has both ends set at the same positions as the both ends of the elastic member, and the washer is inserted into the motor rotating shaft. There is a mounting hole for In a state where it is fastened with a nut attached,
A washer piece portion made of a metal piece that is in contact with the end surface of the other end of the inner peripheral sleeve, and an elastic member in a state where the washer piece portion is adhered over one side surface and the peripheral surface and fastened with the mounting nut. Since the elastic member is interposed between the end portion and the washer piece portion and is in contact with the outer peripheral sleeve end portion, an elastic member effective in damping magnetic vibration from the motor rotating shaft is provided. Assuming that the motor is used, it has an effect of mounting and fixing the motor rotating shaft with high reliability and safety, regardless of various adverse conditions.
【図１】本発明の一実施例を示す、送風ファンボスの縦
断面図。FIG. 1 is a vertical cross-sectional view of a blower fan boss showing an embodiment of the present invention.
【図２】（Ａ）は、同実施例の、ワッシャの平面図。
（Ｂ）は、ワッシャの縦断面図。FIG. 2A is a plan view of a washer of the embodiment.
(B) is a longitudinal sectional view of the washer.
【図３】同実施例の、ターボファンの縦断面図。FIG. 3 is a vertical cross-sectional view of the turbo fan of the embodiment.
【図４】同実施例の、ターボファンの一部切欠した斜視
図。FIG. 4 is a partially cutaway perspective view of the turbo fan of the embodiment.
２…ファンブレード、Ｍ…モータ、ａ…回転軸、１０…
ボス部、１１…取付けナット、１３…ワッシャ、１５…
内周スリーブ、１５ａ…鍔部、１７…弾性部材（ゴム部
材）、１６…外周スリーブ、１８ａ…取付け用孔、１８
…ワッシャ片部、１９…弾性片部。2 ... Fan blade, M ... Motor, a ... Rotating shaft, 10 ...
Boss portion, 11 ... Mounting nut, 13 ... Washer, 15 ...
Inner peripheral sleeve, 15a ... Collar portion, 17 ... Elastic member (rubber member), 16 ... Outer sleeve, 18a ... Mounting hole, 18
... Washer piece, 19 ... Elastic piece.
Claims (1)
軸に挿嵌されるボス部と、 このボス部と、ボス部を回転軸に締結固定する取付けナ
ットとの間に介在するワッシャとを具備した送風ファン
において、 上記ボス部は、 モータの回転軸に挿嵌され、その挿入側端部に鍔部を有
する、金属製円筒状の内周スリーブと、 この内周スリーブの鍔部と外周面とに亘って接着され、
上記鍔部とは反対側の端部において内周スリーブ端部よ
り所定寸法短く形成される弾性部材と、 その外周面に上記ファンブレードが設けられ、上記弾性
部材の外周面に接着されるとともに、両端部が弾性部材
の両端部と同一位置に設定される金属製円筒状の外周ス
リーブとからなり、 上記ワッシャは、 上記モータ回転軸に挿嵌される取付け用孔が設けられ、
上記取付けナットで締結された状態で、内周スリーブの
他端部端面に当接される金属片からなるワッシャ片部
と、 このワッシャ片部の一側面および周面に亘って接着さ
れ、上記取付けナットで締結された状態で、弾性部材端
部とワッシャ片部との間に介在され、かつ外周スリーブ
端部に当接する弾性片部とを具備したことを特徴とする
送風ファン。1. A fan blade is provided, comprising a boss portion that is inserted into and fitted to a rotating shaft of a motor, and a washer that is interposed between the boss portion and a mounting nut that fastens and fixes the boss portion to the rotating shaft. In the blower fan described above, the boss portion is inserted into the rotation shaft of the motor, and has a flange portion at the end portion on the insertion side thereof, and is a metal cylindrical inner peripheral sleeve, and the flange portion and the outer peripheral surface of the inner peripheral sleeve. Glued over
An elastic member formed on the end opposite to the flange portion by a predetermined dimension shorter than the end of the inner sleeve, and the fan blade provided on the outer peripheral surface of the elastic member are bonded to the outer peripheral surface of the elastic member. Both ends are made of a metallic cylindrical outer peripheral sleeve set at the same position as both ends of the elastic member, and the washer is provided with a mounting hole to be fitted into the motor rotation shaft,
A washer piece portion made of a metal piece that is in contact with the end surface of the other end portion of the inner peripheral sleeve in a state of being fastened with the mounting nut, and is adhered to one side surface and the peripheral surface of the washer piece portion. A blower fan, comprising: an elastic piece portion interposed between an elastic member end portion and a washer piece portion in a state of being fastened with a nut and abutting against an outer peripheral sleeve end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24441693A JP3272117B2 (en) | 1993-09-30 | 1993-09-30 | Blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24441693A JP3272117B2 (en) | 1993-09-30 | 1993-09-30 | Blower fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07103193A true JPH07103193A (en) | 1995-04-18 |
| JP3272117B2 JP3272117B2 (en) | 2002-04-08 |
Family
ID=17118343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24441693A Expired - Fee Related JP3272117B2 (en) | 1993-09-30 | 1993-09-30 | Blower fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272117B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120588A (en) * | 1998-10-16 | 2000-04-25 | Nikkiso Co Ltd | Impeller fixing structure of canned motor pump |
| WO2019026097A1 (en) * | 2017-07-31 | 2019-02-07 | 三菱電機株式会社 | Fan and indoor machine of air conditioning device provided with fan |
| WO2019141790A1 (en) * | 2018-01-19 | 2019-07-25 | Safran Electrical & Power | Fan for an aircraft cooling unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1002832S1 (en) | 2020-12-07 | 2023-10-24 | Milwaukee Electric Tool Corporation | Fan |
| CN216774528U (en) * | 2021-09-30 | 2022-06-17 | 米沃奇电动工具公司 | Motor assembly and fan comprising same |
-
1993
- 1993-09-30 JP JP24441693A patent/JP3272117B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120588A (en) * | 1998-10-16 | 2000-04-25 | Nikkiso Co Ltd | Impeller fixing structure of canned motor pump |
| WO2019026097A1 (en) * | 2017-07-31 | 2019-02-07 | 三菱電機株式会社 | Fan and indoor machine of air conditioning device provided with fan |
| EP3462038A4 (en) * | 2017-07-31 | 2019-10-09 | Mitsubishi Electric Corporation | Fan and indoor machine of air conditioning device provided with fan |
| JPWO2019026097A1 (en) * | 2017-07-31 | 2020-02-27 | 三菱電機株式会社 | Indoor unit of fan and air conditioner equipped with fan |
| CN110998102A (en) * | 2017-07-31 | 2020-04-10 | 三菱电机株式会社 | Fan and indoor unit of air conditioner provided with fan |
| CN110998102B (en) * | 2017-07-31 | 2021-04-02 | 三菱电机株式会社 | Fan and indoor unit of air conditioner provided with fan |
| US11118597B2 (en) | 2017-07-31 | 2021-09-14 | Mitsubishi Electric Corporation | Fan and indoor unit of air-conditioning apparatus provided with fan |
| WO2019141790A1 (en) * | 2018-01-19 | 2019-07-25 | Safran Electrical & Power | Fan for an aircraft cooling unit |
| FR3077105A1 (en) * | 2018-01-19 | 2019-07-26 | Safran Electrical & Power | FAN FOR AN AIRCRAFT COOLING UNIT |
| CN111601973A (en) * | 2018-01-19 | 2020-08-28 | 赛峰电气与电源公司 | Fan for an aircraft cooling unit |
| US11280347B2 (en) | 2018-01-19 | 2022-03-22 | Safran Electrical & Power | Fan for an aircraft cooling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3272117B2 (en) | 2002-04-08 |
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